Family Search's Record Search Pilot is very good! (General)
For those who use the free service which Familysearch.org provides it is well worth exploring the Record Search Pilot which throws up more than just the records on the main search engine. It is well worth exploring especially for finding more obscure things like marriages, deaths etc. in India. It's easy to use and has provided me with some missing links to many strands of my family history (not just the Forest of Dean branch but others too). The pilot is easily found on it's main opening page under the link to the main search engine.